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But recent genomic techniques have highlighted the likelihood that extreme de-pigmentation in Eurasia is a feature of the last 10,000years, not the Upper Pleistocene, when modern humans first settled northern Eurasia. Additionally the data imply two independent selection events in eastern and western Eurasia.

If the results of these techniques are true, they can also be interpreted in a different way: Maybe Upper Pleistocene anatomically modern people of northern Eurasia were almost totally replaced by the Neolithic colonists (farming and/or herding) during the Holocene. So with this replacement, Upper Pleistocene anatomically modern people of northern Eurasia, who were already de-pigmented from their earliest times in northern Eurasia and whose de-pigmentation genes were totally (or almost totally) different from today's populations, would be replaced by the Neolithic colonists (who, of course, were also anatomically modern), who had more or less the same de-pigmentation genes with today's northern Eurasian populations. The difference between eastern and western Eurasia in de-pigmentation genes can easily be explained with different Neolithic source populations for them. This scenario also explains the sudden appearance and spread of the Mongoloid phenotype (never seen anywhere during the Upper Pleistocene) in eastern Eurasia during the Holocene. Also Upper Pleistocene anatomically modern Europeans don't look like Holocene Europeans (including today's Europeans).

What are your observations and knowledge about the existence of natural blond hair among Filipinos and the other totally or almost totally non-Caucasoid ethnicities? How frequent is it among them, and in what types? Also is it genetic, environmental (poor nutrition (esp. of vit D), exposure to sun, etc.) or a combination of the two? If it is genetic (at least partially), I wonder which genes are responsible and if they are the same or similar to those of the Caucasoid (at least partially) blonds? Everyone's response is welcome.

Nice Post Thanks for sharing.PigmentationPigmentation refers to the discoloration of skin. Which occurs due to the presence of melanin, the pigmenting agent responsible for the dark black-brown tones existing in concentrated areas within the skin.